The Dangerous Liaisons in the Oxidative Stress Response to <i>Leishmania</i> Infection

<i>Leishmania</i> parasites preferentially invade macrophages, the professional phagocytic cells, at the site of infection. Macrophages play conflicting roles in <i>Leishmania</i> infection either by the destruction of internalized parasites or by providing a safe shelter for...

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Main Authors: Marta Reverte, Tiia Snäkä, Nicolas Fasel
Format: Article
Language:English
Published: MDPI AG 2022-03-01
Series:Pathogens
Subjects:
Online Access:https://www.mdpi.com/2076-0817/11/4/409
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author Marta Reverte
Tiia Snäkä
Nicolas Fasel
author_facet Marta Reverte
Tiia Snäkä
Nicolas Fasel
author_sort Marta Reverte
collection DOAJ
description <i>Leishmania</i> parasites preferentially invade macrophages, the professional phagocytic cells, at the site of infection. Macrophages play conflicting roles in <i>Leishmania</i> infection either by the destruction of internalized parasites or by providing a safe shelter for parasite replication. In response to invading pathogens, however, macrophages induce an oxidative burst as a mechanism of defense to promote pathogen removal and contribute to signaling pathways involving inflammation and the immune response. Thus, oxidative stress plays a dual role in infection whereby free radicals protect against invading pathogens but can also cause inflammation resulting in tissue damage. The induced oxidative stress in parasitic infections triggers the activation in the host of the antioxidant response to counteract the damaging oxidative burst. Consequently, macrophages are crucial for disease progression or control. The ultimate outcome depends on dangerous liaisons between the infecting <i>Leishmania</i> spp. and the type and strength of the host immune response.
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spelling doaj.art-5624272d767a4ca89f7a9dbc18cdfa0e2023-12-03T13:48:51ZengMDPI AGPathogens2076-08172022-03-0111440910.3390/pathogens11040409The Dangerous Liaisons in the Oxidative Stress Response to <i>Leishmania</i> InfectionMarta Reverte0Tiia Snäkä1Nicolas Fasel2Department of Biochemistry, Faculty of Biology and Medicine, University of Lausanne, 1066 Lausanne, SwitzerlandDepartment of Biochemistry, Faculty of Biology and Medicine, University of Lausanne, 1066 Lausanne, SwitzerlandDepartment of Biochemistry, Faculty of Biology and Medicine, University of Lausanne, 1066 Lausanne, Switzerland<i>Leishmania</i> parasites preferentially invade macrophages, the professional phagocytic cells, at the site of infection. Macrophages play conflicting roles in <i>Leishmania</i> infection either by the destruction of internalized parasites or by providing a safe shelter for parasite replication. In response to invading pathogens, however, macrophages induce an oxidative burst as a mechanism of defense to promote pathogen removal and contribute to signaling pathways involving inflammation and the immune response. Thus, oxidative stress plays a dual role in infection whereby free radicals protect against invading pathogens but can also cause inflammation resulting in tissue damage. The induced oxidative stress in parasitic infections triggers the activation in the host of the antioxidant response to counteract the damaging oxidative burst. Consequently, macrophages are crucial for disease progression or control. The ultimate outcome depends on dangerous liaisons between the infecting <i>Leishmania</i> spp. and the type and strength of the host immune response.https://www.mdpi.com/2076-0817/11/4/409macrophageROSinflammationNRF2NF-kB<i>Leishmania</i>
spellingShingle Marta Reverte
Tiia Snäkä
Nicolas Fasel
The Dangerous Liaisons in the Oxidative Stress Response to <i>Leishmania</i> Infection
Pathogens
macrophage
ROS
inflammation
NRF2
NF-kB
<i>Leishmania</i>
title The Dangerous Liaisons in the Oxidative Stress Response to <i>Leishmania</i> Infection
title_full The Dangerous Liaisons in the Oxidative Stress Response to <i>Leishmania</i> Infection
title_fullStr The Dangerous Liaisons in the Oxidative Stress Response to <i>Leishmania</i> Infection
title_full_unstemmed The Dangerous Liaisons in the Oxidative Stress Response to <i>Leishmania</i> Infection
title_short The Dangerous Liaisons in the Oxidative Stress Response to <i>Leishmania</i> Infection
title_sort dangerous liaisons in the oxidative stress response to i leishmania i infection
topic macrophage
ROS
inflammation
NRF2
NF-kB
<i>Leishmania</i>
url https://www.mdpi.com/2076-0817/11/4/409
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